MODBUS与CANBUS总线在环保物联网的现场应用研究

Application of MODBUS vs. CANBUS in Area for Environmental Protection IOT

就目前环境监测现场中总线技术的采用,分析了在应用中使用MODBUS总线的状况。从环境监测的体系架构出发,通过分析CAN总线的高层和底层通信协议,描述其在现场替代MODBUS的优势,提出了污染源在线实时监测系统现场的总线实施方案,给出了适于环境监测现场应用的CAN总线接入系统拓扑并详述原因。

As the case that bus technology using on situ environmental monitoring stands,the status of using MODBUS is analyzed.From the fact of environmental monitoring architecture,the protocols of CANBUS at high and low layer are analyzed.So the advantage that it takes place of MODBUS on the spot is described.And a bus implement solution for in-situ real-time monitoring system of pollution source is put forwards.Further the system topological structure of CANBUS area application suitable for environmental monitoring and the reason is given out in detail.